How can I use integral in Matlab Function Block

Question

thuan vu duc 2018-3-31

0
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https://ww2.mathworks.cn/matlabcentral/answers/391783-how-can-i-use-integral-in-matlab-function-block

编辑： Birdman 2018-3-31

采纳的回答： Birdman

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Hello,

I'm trying to use "integral" function in "matlab function" in simulink. My code is:

function y = fcn(u)
  syms x;
  f = @(x)x;
  y = integral(f,0,2);

But it has some errors:

The function 'syms' is not supported for standalone code generation. See the documentation for coder.extrinsic to learn how you can use this function in simulation.
Function 'MATLAB Function' (#57.20.27), line 2, column 1:
"syms x;"
Launch diagnostic report.
Component: MATLAB Function | Category: Coder error
Anonymous functions are not supported for code generation.
Function 'MATLAB Function' (#57.32.33), line 3, column 5:
"@"
Launch diagnostic report.
Component: MATLAB Function | Category: Coder error
Undefined function or variable 'f'. The first assignment to a local variable determines its class.
Function 'MATLAB Function' (#57.52.53), line 4, column 14:
"f"